Concept explainers
(a)
Interpretation:
The term which has a tertiary structure that recognizes the substrate should be matched.
- Enzyme (2) Enzyme-substrate complex (3) Substrate
Concept Introduction:
An enzyme is also a protein which has the capability to bind with the substrate (reactant molecule) by recognizing it. Enzymes have a unique three-dimensional shape which helps them in binding to the substrate. The size of an enzyme is typically larger than that of the substrate, and it contains a region known as active site within its structure. This active site is responsible for binding the substrate and thus catalyzing the given reaction.
(b)
Interpretation:
The term which has a structure that fits the active site of the enzyme should be matched.
- Enzyme (2) Enzyme-substrate complex (3) Substrate
Concept Introduction:
An enzyme is also a protein which has the capability to bind with the substrate (reactant molecule) by recognizing it. Enzymes have a unique three-dimensional shape which helps them in binding to the substrate. The size of an enzyme is typically larger than that of the substrate, and it contains a region known as active site within its structure. This active site is responsible for binding the substrate and thus catalyzing the given reaction.
(c)
Interpretation:
The term which is used for the combination of an enzyme with the substrate should be matched.
- Enzyme (2) Enzyme-substrate complex (3) Substrate
Concept Introduction:
An enzyme is also a protein which has the capability to bind with the substrate (reactant molecule) by recognizing it. Enzymes have a unique three-dimensional shape which helps them in binding to the substrate. The size of an enzyme is typically larger than that of the substrate, and it contains a region known as active site within its structure. This active site is responsible for binding the substrate and thus catalyzing the given reaction.
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Basic Chemistry
- Describe the importance of zymogens in the body. Give an example of an enzyme that has a zymogen.arrow_forward. How does the efficiency of an enzyme compare with that of inorganic catalysts? Are enzymes more or less efficient?arrow_forwardDraw a graph that shows the effect of increasing substrate concentration on the rate of an enzyme-catalyzed reaction (at constant temperature, pH, and enzyme concentration).arrow_forward
- In the multienzyme sequence shown below, molecules of D are able to fit to the enzyme E1 and prevent the conversion of A to B. What is this action of E called? AE1BE2CE3D a. effector inhibition b. allosteric inhibition c. feedback inhibition d. competitive inhibition by nonproductarrow_forwardHow is enzyme specificity explained by the lock-and-key theory?arrow_forwardBased on the graphical information in Problem 21-41 about enzymes A and B a. What is the optimum pH for enzyme B? b. What is the optimum temperature for enzyme A? c. Which enzyme has the greater activity at a pH of 7.2? d. Which enzyme has the greater activity at a temperature of 37.2C?arrow_forward
- The site on an enzyme molecule that does the catalytic work is called the: a. binding site. b. allosteric site. c. lock. d. active site.arrow_forwardWhen handling or storing solutions of enzymes, the pH is usually kept near 7.0. Explain why.arrow_forwardThe process by which an enzyme acts on the substrate can be described by the: a. lock-and-key model. b. enzyme-and-substrate model. c. enzyme folding model. d. catalytic model.arrow_forward
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